The most common cause of yellow discoloration in the toenails is a fungal infection. The fungus often develops underneath the nail, resulting in it becoming thick, raised, and yellow in color. Other potential causes for yellow discoloration of the nail include diabetes mellitus and lymphedema (chronic leg swelling). Yellow staining of the nails can also occur in individuals who use nail polish. A stained nail may take several months to grow out.
Skin and Nail Issue
Athlete's foot and fungal nails are the most common fungal problems with feet.
Many people don't realize they have a fungal nail problem and, therefore, don't seek treatment. Yet, fungal toenail infections are a common foot health problem and can persist for years without ever causing pain. The disease, characterized by a change in a toenail's color, is often considered nothing more than a mere blemish. Left untreated, however, it can present serious problems.
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Ingrown toenails occur when the corners or sides of the toenail dig into the skin, often causing infection. Also known as onychocryptosis, ingrown toenails, start out hard,swollen, and tender. Left untreated, they may become sore, red, and infected and the skin may start to grow over the ingrown toenail. They are usually caused by trimming toenails too short, particularly on the sides of the big toes, and may also be caused by shoe pressure (from shoes that are too tight or short), injury, fungus infection, heredity, or poor foot structure. A common ailment, ingrown toenails can be painful. Click here for more information on ingrown toenails.
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